Distillation apparatus.



J. T. DAVIS.

DISTILLATION APPARATUS.

APPLICATION FILED MAY 8. 1911.

1,@23,2%, Patented Apr. 16, 1912.

WITNESSES w q: INVENTOR vertical walls 4 within the still and flow'up upward being UNITED STATES PATENT JOHN T. DAVIS, OF- ALAMED A, CALIFORNIA, ASSIGNOR TO THE TECHNICAL DEVELOP- MENT COMPANY, or SAN FRANCISCO; museum, A conrona'rroiv' or ARIZONA.

DISTILLATION APPARATUS. I

Specification of Letters Patent. Application nled'ma 8,1911. Serial No. 625,687.

Patented Apr. 16,

To all whom it may concern:

Be it known that I, JOHN T. DAVIS, a citizen of the.United States, residing at Alameda, in the county of Alameda and State of California, have invented new and useful Improvements in Distillation Apparatus, of which the following is a specification.

This invention relates to an improved apparatus for distilling alcohol, oil, or other liquids, the object of the invention being to provide apparatus of this character which will be simple in construction and convenient in use.-

In the accompanying drawing, Figure 1 is a vertical cross section on the line 1--1'of Fig. 2; Fig. 2 is a vertical longitudinal section on the line 22 of Fig. 1. e

Referring to the drawing, 1 indicates the body of myimproved still,having at the top, inclosed in brick work 2 a vessel or trough 3 for the preliminary treatment of the liquid to be distilled, especially when crude oils are to be treated which have water mixed therewith. Hot products of combustion from a suitable furnace are led between parallel ward between said walls, the amount of hot products of combustion permitted toso'pass regulated by rotary dampers 5- on longitudinal shafts 6. Thehot products of. combustion escape'at the top of the still by outlet passages 7 at the sides of the;

vessel 3, being conducted away by a suitable flue 8 the lower end of such flue only being here shown.

The liquid to be distilled is passed into pipes and flows throughsmall holes 10 in the lower sides of said pipes intosaid vessel. Any vapor, given off by the liquid in said vessel escapes by an outlet pipe 11.. From the bottom of the vessel the liquid flows to a pipe 12 which connects with branch pipes 13 and-longitudinal pipes 14, said longitudinal pipes bemgformed at the bottom with small holes-15. Said longitudinal pipes are arranged each above the first of a vertical series of troughs 16,'said troughs being formed of strips of metal having flanges or bent por- 9 in the upper portion of the vessel 3,,

tions 18 secured to said vertical walls 4, and upwardly and outwardly extending portions. The troughs connected toeach wall slope downwardly in opposite directions alternately, the liquid being discharged from the lower end of each trough into the upper end of the trough immediately below it. From the lowermost trough, the liquid on each side runs into a conduit 19. The walls 4 and troughs 16 are heated by the hot air passing :upward between said walls, and the liquid :in 'said troughs are partly vaporized by" said heat, and the vapors are collected in the chambers '20 within the body of the still outside said walls l and are conducted by pipes 21 which connect with the pipe 11.

An important that the oil flows in succession over a series of plates or troughs, gradually increasing in temperature. 22 indicates troughs to collect the liquids condensed from the vapors on the inside of the still and which are conducted by pipes 23 to be collected with other condensed vapors from the distillation to prevent them mixing with the residual or non-vaporizable liquid This is important particularly in distilling oil from an asphaltic'base since thereby. atvery pure asphalt results as the residuum of the. distillation.

I claim The combination of walls forming' a conduit for products of combustion, a' longitudinal vessel or trough between the upper portions of said walls, having inner sides converging downward, the outer sides of said trough being spaced from the said walls to permit the passage of products of combustion, said trough having a closedtop, means for admitting oil into theupper portion of said trough, a pipe connected with the top of said trough for drawing off the oil feature of my invention is vapor, a pipe connected with the bottom of from the upper to the lower ortion of said In testimony whereof I have hereunto set Wall, means for conducting t e oil from the my hand in the presence of two subscribing first-named trough on to the upper of each witnesses.

series, walls forming with said, first-named JOHN T. DAVIS 6 walls closed vapor chambers, and means for Witnesses:

conducting off the vapor from said cha'm-, FRANCIS M. WRIGHT,

bers. D. B. R cmnns. 

